Assembly Automation: Volume 42 Issue 6

Fusion event-triggered model predictive control based on shrinking prediction horizon

Qun Cao, Yuanqing Xia, Zhongqi Sun, Li Dai

This paper aims to design an algorithm which is used to deal with non-linear discrete systems with constraints under the lower computation burden. As a result, we solve the…

Reinforcement learning control for a flapping-wing micro aerial vehicle with output constraint

Haifeng Huang, Xiaoyang Wu, Tingting Wang, Yongbin Sun, Qiang Fu

This paper aims to study the application of reinforcement learning (RL) in the control of an output-constrained flapping-wing micro aerial vehicle (FWMAV) with system uncertainty.

A detailed review and analysis of assembly line rebalancing problems

Tolga Çimen, Adil Baykasoğlu, Sebnem Demirkol Akyol

Various approaches and algorithms have been proposed since the 1950s to solve the assembly line (AL) balancing problem. These methods have established an AL configuration from the…

Coaxiality and perpendicularity prediction of saddle surface rotor based on deep belief networks

Chuanzhi Sun, Yin Chu Wang, Qing Lu, Yongmeng Liu, Jiubin Tan

Aiming at the problem that the transmission mechanism of the assembly error of the multi-stage rotor with saddle surface type is not clear, the purpose of this paper is to propose…

Coil shape defects prediction algorithm for hot strip rolling based on Siamese semi-supervised DAE-CNN model

Fengwei Jing, Mengyang Zhang, Jie Li, Guozheng Xu, Jing Wang

Coil shape quality is the external representation of strip product quality, and it is also a direct reflection of strip production process level. This paper aims to predict the…

Associated tolerance optimization approach using manufacturing difficulty coefficients and genetic algorithm

Maroua Ghali, Sami Elghali, Nizar Aifaoui

The purpose of this paper is to establish a tolerance optimization method based on manufacturing difficulty computation using the genetic algorithm (GA) method. This proposal is…

An industrial heterogeneous data based quality management KPI visualization system for product quality control

Ruihan Zhao, Liang Luo, Pengzhong Li, Jinguang Wang

Quality management systems are commonly applied to meet the increasingly stringent requirements for product quality in discrete manufacturing industries. However, traditional…

Geometric modeling analysis method for stacking assembly deviation of aero engine rotor

Zesheng Wang, Dongbo Wu, Hui Wang, Jiawei Liang, Jingguang Peng

Assembly errors of aeroengine rotor must be controlled to improve the aeroengine efficiency. However, current method cannot truly reflect assembly errors of the rotor in working…

Tolerance analysis of planar parts with skin modeling considering spatial distribution characteristics of surface morphology and local surface deformations

Tuan-Hui Shen, Cong Lu

This paper aims to develop a method to improve the accuracy of tolerance analysis considering the spatial distribution characteristics of part surface morphology (SDCPSM) and…

Automatic tolerance analyses by generation of assembly graph and mating edges from STEP AP 242 file of mechanical assembly

Mukunthan S., Manu R., Deepak Lawrence K.

This paper aims to propose a method to automate the tolerance analyses of mechanical assembly using STandard for the Exchange of Product model data-Application Protocol Part 242…

The application of robotics and artificial intelligence in embroidery: challenges and benefits

Ling Chen, Zhi Su, Xiaotong He, Xiang Chen, Lin Dong

Embroidery as a textile embellishment technique plays an important role in people's daily life. Esthetic embroidery artworks possess cultural values. With the development of…

Adaptive neural prescribed performance control for switched pure-feedback non-linear systems with input quantization

Zhongwen Cao, Liang Zhang, Adil M. Ahmad, Fawaz E. Alsaadi, Madini O. Alassafi

This paper aims to investigate an adaptive prescribed performance control problem for switched pure-feedback non-linear systems with input quantization.

Online modeling of environmental constraint region for complex-shaped parts assembly

Shuai Gan, Yang Liu, Ziyu Chen

The paper aims to propose a method to build environmental constraint region online in complex-shaped peg-in-hole assembly tasks.

The welding tracking technology of an underwater welding robot based on sliding mode active disturbance rejection control

Shengqian Li, Xiaofan Zhang

A welding robot is a complicated system with uncertainty, time-varying, strong coupling and non-linear system. It is more complicated if it is used in an underwater environment…